Curah Hujan Bulanan
Stasiun Bojonegoro, KAB. BOJONEGORO
| Nama Stasiun | : | Bojonegoro |
| Lokasi Stasiun | : | Desa Kalianyar, Kecamatan Kapas, KAB. BOJONEGORO, Provinsi JAWA TIMUR |
| Longitude | : | 111.897587 |
| Latitude | : | -7.171266 |
| Tahun Dibangun | : | 1975 |
| Pengelola | : | BBWS Bengawan Solo |
| Tahun | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des | Jumlah |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1975 | 285.90 | 227.00 | 172.00 | 72.00 | 134.00 | 0.00 | 0.00 | 9.00 | 24.00 | 110.00 | 246.00 | 101.00 | 1,380.90 |
| 1976 | 100.00 | 32.00 | 172.00 | 110.00 | 48.00 | 0.00 | 0.00 | 0.00 | 7.00 | 110.00 | 113.00 | 155.00 | 847.00 |
| 1977 | 371.00 | 192.00 | 461.00 | 37.00 | 136.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 158.00 | 261.00 | 1,616.00 |
| 1978 | 344.00 | 234.00 | 262.00 | 134.00 | 112.00 | 148.00 | 69.00 | 76.00 | 95.00 | 29.00 | 217.00 | 247.00 | 1,967.00 |
| 1979 | 187.00 | 96.50 | 103.00 | 354.50 | 94.50 | 101.00 | 0.00 | 0.00 | 16.50 | 87.50 | 121.00 | 164.00 | 1,325.50 |
| 1980 | 137.50 | 133.50 | 208.50 | 91.00 | 10.00 | 14.00 | 58.00 | 34.00 | 18.00 | 62.50 | 130.50 | 338.00 | 1,235.50 |
| 1981 | 178.00 | 339.50 | 209.00 | 97.00 | 120.50 | 22.50 | 116.50 | 22.00 | 56.00 | 17.50 | 171.50 | 196.00 | 1,546.00 |
| 1982 | 314.50 | 410.50 | 433.50 | 252.00 | 8.00 | 19.00 | 14.71 | 0.00 | 12.50 | 23.50 | 5.00 | 284.50 | 1,777.71 |
| 1983 | 237.50 | 195.00 | 247.50 | 272.50 | 93.50 | 78.00 | 30.50 | 0.00 | 3.00 | 113.00 | 270.50 | 184.00 | 1,725.00 |
| 1984 | 366.50 | 253.00 | 212.00 | 103.50 | 39.00 | 10.70 | 18.00 | 23.00 | 36.00 | 34.50 | 82.00 | 315.50 | 1,493.70 |
| 1985 | 231.00 | 339.50 | 183.00 | 186.50 | 33.00 | 54.50 | 77.50 | 9.50 | 9.70 | 181.50 | 66.50 | 228.50 | 1,600.70 |
| 1986 | 233.00 | 446.00 | 362.00 | 307.00 | 27.00 | 142.50 | 71.00 | 25.00 | 70.00 | 80.50 | 159.50 | 523.50 | 2,447.00 |
| 1987 | 523.50 | 251.50 | 144.00 | 23.50 | 103.00 | 16.50 | 0.00 | 0.00 | 0.00 | 0.00 | 214.00 | 265.00 | 1,541.00 |
| 1988 | 348.50 | 246.00 | 321.00 | 28.00 | 162.43 | 36.00 | 42.00 | 39.50 | 0.00 | 120.00 | 233.50 | 367.00 | 1,943.93 |
| 1989 | 197.50 | 384.80 | 267.50 | 245.50 | 123.50 | 190.50 | 47.00 | 126.00 | 0.50 | 96.00 | 161.00 | 237.00 | 2,076.80 |
| 1990 | 377.00 | 130.00 | 114.00 | 112.50 | 94.00 | 17.00 | 40.00 | 47.50 | 50.00 | 23.00 | 83.00 | 337.00 | 1,425.00 |
| 1991 | 254.50 | 215.00 | 244.50 | 345.50 | 28.50 | 0.00 | 4.50 | 0.00 | 1.00 | 2.00 | 236.50 | 334.50 | 1,666.50 |
| 1992 | 291.50 | 305.80 | 173.60 | 309.50 | 40.00 | 14.00 | 11.00 | 3.00 | 51.00 | 138.50 | 125.50 | 223.50 | 1,686.90 |
| 1993 | 216.50 | 247.50 | 235.50 | 189.00 | 91.00 | 55.00 | 6.50 | 2.00 | 12.50 | 99.35 | 179.00 | 164.00 | 1,497.85 |
| 1994 | 349.50 | 235.50 | 196.00 | 61.50 | 66.00 | 2.50 | 0.00 | 0.00 | 0.00 | 14.50 | 35.50 | 298.50 | 1,259.50 |
| 1995 | 180.00 | 383.00 | 169.50 | 240.00 | 85.50 | 53.50 | 8.50 | 0.00 | 8.00 | 90.00 | 311.00 | 200.50 | 1,729.50 |
| 1996 | 187.50 | 237.00 | 148.50 | 186.50 | 70.00 | 41.50 | 21.00 | 60.00 | 42.50 | 62.50 | 188.00 | 353.50 | 1,598.50 |
| 1997 | 285.00 | 172.00 | 178.50 | 72.50 | 11.36 | 1.00 | 9.00 | 0.00 | 0.00 | 3.50 | 48.00 | 308.00 | 1,088.86 |
| 1998 | 300.50 | 560.50 | 373.00 | 150.50 | 79.00 | 155.50 | 59.00 | 62.00 | 36.50 | 301.50 | 264.00 | 198.00 | 2,540.00 |
| 1999 | 389.00 | 210.00 | 428.00 | 297.00 | 122.00 | 55.00 | 134.00 | 25.00 | 0.00 | 130.00 | 431.00 | 270.00 | 2,491.00 |
| 2000 | 322.00 | 332.00 | 241.00 | 339.00 | 62.00 | 53.00 | 3.00 | 0.00 | 104.00 | 159.00 | 429.00 | 117.00 | 2,161.00 |
| 2001 | 331.00 | 166.00 | 441.00 | 139.00 | 0.00 | 75.00 | 60.00 | 0.00 | 19.00 | 166.00 | 161.00 | 359.00 | 1,917.00 |
| 2002 | 381.00 | 210.00 | 171.00 | 101.00 | 45.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 187.00 | 233.00 | 1,328.00 |
| 2003 | 211.00 | 194.00 | 169.00 | 113.00 | 116.50 | 0.00 | 0.00 | 0.00 | 0.00 | 168.00 | 285.50 | 119.00 | 1,376.00 |
| 2004 | 469.00 | 212.00 | 0.00 | 0.00 | 0.00 | 12.50 | 31.50 | 0.00 | 2.50 | 30.00 | 121.00 | 138.00 | 1,016.50 |
| 2005 | 263.00 | 226.50 | 250.50 | 268.00 | 21.50 | 33.50 | 28.50 | 9.50 | 31.00 | 46.50 | 238.00 | 206.40 | 1,622.90 |
| 2006 | 292.00 | 166.00 | 140.00 | 56.00 | 0.00 | 15.00 | 0.00 | 32.00 | 0.00 | 151.20 | 124.00 | 198.00 | 1,174.20 |
| 2007 | 125.50 | 293.00 | 219.50 | 125.00 | 69.00 | 107.00 | 7.00 | 5.00 | 0.00 | 48.00 | 77.00 | 308.00 | 1,384.00 |
| 2008 | 272.00 | 168.00 | 140.00 | 56.00 | 0.00 | 15.00 | 0.00 | 33.00 | 0.00 | 151.00 | 124.00 | 198.00 | 1,157.00 |
| 2009 | 150.00 | 281.00 | 384.00 | 121.00 | 153.00 | 33.00 | 0.00 | 11.00 | 10.00 | 15.00 | 80.00 | 313.00 | 1,551.00 |
| 2010 | 615.00 | 434.00 | 341.00 | 263.00 | 221.00 | 141.00 | 88.00 | 78.00 | 105.00 | 219.00 | 184.00 | 263.00 | 2,952.00 |
| 2011 | 188.00 | 194.00 | 446.00 | 167.00 | 0.00 | 15.00 | 16.00 | 0.00 | 16.00 | 39.00 | 118.00 | 128.00 | 1,327.00 |
| 2012 | 342.00 | 336.00 | 436.00 | 72.00 | 140.00 | 122.00 | 0.00 | 0.00 | 0.00 | 88.00 | 290.00 | 226.00 | 2,052.00 |
| 2013 | 233.00 | 69.00 | 94.00 | 85.00 | 47.00 | 69.00 | 70.00 | 0.00 | 6.00 | 25.00 | 120.00 | 158.00 | 976.00 |
| 2014 | 95.00 | 85.00 | 141.00 | 109.00 | 29.00 | 9.00 | 28.00 | 5.00 | 0.00 | 4.00 | 29.00 | 207.00 | 741.00 |
| 2015 | 125.00 | 176.00 | 149.00 | 159.00 | 32.00 | 25.00 | 0.00 | 0.00 | 0.00 | 0.00 | 30.00 | 138.80 | 834.80 |
| 2016 | 112.50 | 173.00 | 54.50 | 77.00 | 32.50 | 57.50 | 3.00 | 16.00 | 18.00 | 81.00 | 202.00 | 235.00 | 1,062.00 |
| 2017 | 282.00 | 216.00 | 302.00 | 194.00 | 117.00 | 62.00 | 35.00 | 1.00 | 64.00 | 217.90 | 383.50 | 211.50 | 2,085.90 |
| 2018 | 156.00 | 317.00 | 227.00 | 77.00 | 56.00 | 28.00 | 0.00 | 0.00 | 0.00 | 32.00 | 107.00 | 224.00 | 1,224.00 |
| 2019 | 389.00 | 113.00 | 379.00 | 248.00 | 18.00 | 0.00 | 5.00 | 23.00 | 0.00 | 22.00 | 112.00 | 175.00 | 1,484.00 |
| Rata-rata | 272.01 | 240.86 | 238.77 | 156.61 | 68.70 | 46.68 | 26.95 | 17.27 | 20.56 | 79.84 | 170.06 | 238.00 | 1,576.30 |
Berdasarkan rata-rata curah hujan bulanan di Stasiun Bojonegoro Desa Kalianyar, Kecamatan Kapas, KAB. BOJONEGORO, Provinsi JAWA TIMUR, Musim Basah terjadi mulai bulan Oktober. Musim basah ditandai dengan curah hujan tinggi, tanah yang lebih lembab, dan seringnya terjadi hujan lebat. Sedangkan Musim Kering terjadi mulai bulan Agustus. Musim kering ditandai dengan curah hujan rendah, tanah lebih kering, dan kondisi cuaca yang umumnya lebih panas.
Besar curah hujan tahunan rata-rata adalah sebesar 1576.3 mm/tahun. Curah hujan bulanan rata-rata maksimum adalah sebesar 272.01 mm/bulan. Berdasakan data curah hujan tahunan, dengan menggunakan metode regresi linear sederhana, diperoleh kesimpulan bahwa Curah hujan menunjukkan tren menurun dengan kemiringan sebesar -4.3396
